Grain-harvester attachment



A. KRAFT GRAIN HARVESTER ATTACHMENT April 17, 1928.

Filed Oct. 21, 1926 Alttorney Patented Apr. 17, 1928.'

ABRAHAM KRAFT, or FABMINGTON, MINNESOTA.

GRAIN-HARVESTER ATTACHMENT.

Application filed October 21', 1926. Serial No. 143,235.

The presentinvention relates to a novel structure, in the form of anattachment, for use in association with a grain harvester, and theprincipal object is to provide a device to be employed on the binderdecking for saving grain and making straight well compressed bundles.

The usual binder deck is in twospaced sections and the compressing andtrip mechanism operates between the adjacent portions of the sections.WVith the present day construction, the short pieces usually fall on theground during the bundling operation, thus permitting loss of muchmaterial and the formation of a comparatively loose or ragged bundle. Y

The purpose of the improvedinvention is L to hold all of the parts ofthe bundle together in such a manner as to permit them to be properlybundled and tied together, and to absolutely prevent the objectionablewastage referred to. \Viththe improved attachment in place, aboutseventy-five percent of the otherwise scattered material is saved. g

The specific structural features and advantages of the invention willbecome more readily apparent from the following description. I

In the accompanying drawings forming a part of this application and inwhich like numerals are employed to designate like parts throughoutthesame: I

Fig. 1 is a. perspective view showing the vinvention in place for use ona conventional form of binder deck. 7 t

Fig. 2 is an enlarged perspective view of the invention per se.

Fig. 3 is a cross-section taken on the plane of the line 3-3 of Fig. 2.

Briefly, the invention comprises a sectional backing member which ishingedlymounted for downward and outward swinging on the discharge endof the deck, the same normally assuming a vertical operative position.Co-operating withone end of said backing member is novel meanswlnch 18also associated with the customary needle arm,

and this means acts in conjunction with the neeedle arm for moving thebacking member to a position to facilitate discharge of the finishedbundle at theproper time.

Referring now to the drawings indetail, it will be seen that therespective sections of the backing member are represented by thereference characters 1. Each Section s needle arm 11. a single length ofwire of proper gage, and

in the form of an elongated board. These are arranged in end to endspaced relation, the space being located in alinement with the slotexisting between'the parts 2 of the bind er decking. The combined lengthof the two boards is, of course, consistent with the full width of thedeck. It will be noticed from Fig. 1v that I have shown one of thepackers 3 and the complemental trip 4:, these being parts of theusual'machine. In connection with the trip, I would state that freeoperaing of the boards. By" directing attention to Fig 3 in particular,it will be seen that a special bracket 7 is attached tothe outercomprises a'pair of small';plates.8 fastened to said board by bolts 9,and spacing sleeves surround the bolts and are interposed between theplates to maintain them in the assembly represented. This bracket servesin a manner to be hereinafter made plain. As before stated, novel means,broadly defined as a timing and operating device, co-operates with thebracketand the usual This device is formed from this is bent into a coil12 between its ends. One arm 13 is provided by the rearwardly extendingend portion and this terminates in a right angular finger which islocated between the aforesaid plates as indicated at 14. This makes fora loose yielding connection. The remaining end portion of the wire formsanother arm 15 which also tertion ofIthe-same is permitted by the curvedend of the right-hand board. i This bracket minates in a right angularlyformed finger located for operating contact with the arm 11. Thecompressor shaft 17 has a short extension soldered or otherwise formedthereon and it is upon this that the coil 12 is rockably mounted.

rom the foregoing, it f is obvious that the wire operating memberfunctions somewhat as a bell crank. In this connection it will be notedthat at the proper intervals, the needle arm 11 will move upwardly Theinturned end through a limited arc.

beneath the needle 16 ofthe arm 15 bein arm 11, will followt e needle,arm, thus permitting the complemental a m 1 i0 swing downwardly aboutthe fulcrum coil 12. The loose sliding connection of the fin ger 14 inbracket 7 allows a freedownward swingingmovement of the member 1. \Vhenthe arm 11 returns to its normal position, it exerts a downward pressureon the finger 16, thus rocking the wire-operating member back to theposition shown in Fig. 1.

With this arrangement, it is obvious that the resilient operating deviceis controlled by the needle arm, and at the proper time, the bundlebacking'board is allowed to swing down andpermit discharge of thefinished bundle. T he resiliency of the operating device also permits arequired movement of the backing member while the bundle is in themaking. In other words, if considerable pressureis brought to bearagainst the board while in a vertical p031 on, the latter is allowed toyield slightly owing to the formation of the arm 13 and the cooperatingbracket 7. 1 i i lit is thought that by considering the description inconnection with the drawings, a clear understanding of the constructionand operation will be-had. Therefore, a more lengthy description isdeemed unnecessary:

I claim:

I r 1. In combination, a binder deck, a needle arm, a compressor shaft,a bundle backing member pivotally supported at its center upon theshaft, having one end bearing against said needle arm and the other endslidably connected with said backing member. i I

2. In a structure of the class described, an attachment for thedischarge end of a grain binder decking comprising abundle backingmember adapted to be, hingedly mounted upon the decking, said membercomprising a pair of duplicate boards ofelongated form disposed inend-to end spaced relationand an outwardly and longitudinally bowedconnecting strap connected to the adjacent ends of) said board, anoperating device for said backing member comprising a single. length ofwire rod bent between its ends toprovide an attaching and fulcrum coil,the portions extending fromsaidcoils forming operating arms, saidoperating arms terminating in right angularly disposed fingers, onefinger beingadapted for associationwith a needle arm, and the bracketscarried by one of the aforesaid boards, thelremaining finger beingconnected .With said bracket.

In testimony whereof I aflix my signature.

ABRAHAM KRAFT.

